This is the Mastodon client app with an experience that you will like. Share with people in an open world SNS with the experience you're familiar with. Experience conversation based interactions with brand new Material Design Refresh. Watch and join realtime, non-stopping conversations. Avalanche is all about what's happening right now.
A very nice app that displays the feed in the “post + comments” way rather than in a microblogging manner.
I quite like it. No font size control that I can see (pun intended) though.